Horseshoe-machine



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UNITED sTATEs PATENT oEEi'oE.

JOHN MCCAR'LY,

OF llflllilDlGLIl-IL, PENNSYLVANIA, ASSIGNOR T() LIGYFER'I, MCMANUS CO.,OF llliL-UING, PENNSYLVANIA.

HORSESHOE-MACHINE.

Specification of Letters Patent No. 30.448, dated October 16, 1860.

To all whom it may concern:

Be it known that I, JOHN MCCAETY, of Philadelphia, Pennsylvania, haveinvented certain new and useful Improvements in IcIorseshoe-Machines;and I do hereby declare the following to be a full, clear, and eXactdescription of the same, reference being had to the accompanying drawingand to the letters of reference marked thereon.

My invention relates to machinery for compressing bent bars of ironbetween dies which impart the desired form of a horse shoe to the saidbars, and my invention consists, firstly, in the peculiar constructionand arrangement of dies described hereafter whereby the proper shape anddesired finish may be imparted to the shoe; secondly, in a combinationof devices described hereafter for operating the ram which carries theupper die; thirdly, in a device for dis-- charging the finished shoefrom the die.

In order to enable others skilled in the art to make and use myinvention I will now proceed to describe its construction and operation.

On reference to the accompanying drawing which forms a part of thisspecification, Figure l is a front view of my improved machine forcompressing horse shoes; Fig. Q, a vertical section on the line l, Q,Fig. l; Fig. 55, a vertical section of the lower part of the machine;Fig. 4l, a ground plan and Fig'. 5 an enlarged sectional View of thedies.

Similar letters refer to similar parts throughout the several views.

The framework of the machine consists of the standards A and A connectedtogether at the top by the arch a and having at the back two projectingframes o and 7) in the top of which turns the driving shaft B, one endof the latter being furnished with a fly wheel c and the usual fast andloose pulleys d and cl and the opposite end having a pinion C gearinginto the cog wheel D on the cam-shaft E. This shaft turns in suitableboxes formed at the back of the standards A and A and is furnished withthe two cams F and G.

0n vertical guides o c attached to the inside of the standards A and Aslides the ram H furnished at the top with a roller f against which thecam F bears as it revolves so as to effect the downward movement of theram, the upward movement being),

of which is attached to each frame of the machine, the forked arm j ofthis lever being ointed to the lower ends of the vertical rods K. K,which pass through the block L and upward through the guides e c, theirupper ends being secured to the ram H, this peculiar disposition andarrangement of the rods being such that they cannot interfere with thefree access to the dies as will appear more fully hereafter.

The block L. a sectional view of which is shown in Fig. 3, is firmlysecured between the two standards A, A', of the fame and has on the topprojections m forming a socket for receiving the lower die M which has arecess of the form to which the outer edge of the bent iron has to becompressed. Through this die M as well as through the block L pass thetwo rods q, g, the lower ends of which are secured to a block P whichslides between guides t, t, projecting from the underside of the blockL. This block P rests on the end of an arm Q secured to a shaft R whichturns in the opposite plates z' z' previously alluded to, a lever S theupper end of which is acted on by the cam G being secured to this shaftR.

N is the upper die firmly secured to the ram H and having a projection nof the form to which the inside of the shoe has to be compressed.

It should be understood that the pieces of iron for pressing into thedesired shape of the horse shoes, are bent to a form approximating tothat which they will assume when acted upon by this machine, and thatthey are reduced to a red heat prior to being acted on by the dies.

Then the cam F is in the position shown in Fig. 2 and the ram H isconsequently ele vated by the weighted lever I to the limit of itsupward movement an attendant. places the bent and heated bar in therecess of the lower die M.

As the ram descends and the upper die approaches the lower die theproject-ion a, of the former, which is slightly beveled at the edgespasses into the inside of the bent bar before the shoulder m of theupper die comes in contact with the top of the bar. On the furtherdescent of the ram the upper die begins to compress the said bent bar,before the latter however has been pressed to the desired extent theshoulder fr has penetrated the recess of the lo-wer die 1n which recessthe upper die fits snugly as seen 1n Fig. 5 so that there can be no buror inequality on the edge of the shoe. The two dies in fact, when theupper one is depressed, inclose a space of the eXact form of the desiredshoe, so that the bent iron, if it is of the proper size in the firstinstance, must necessarily assume this form. After the desired pressurehas been imparted to the bent bar the projecting portion of the cam Fwhich had been previously bearing on the roller f and consequentlydepressing the ram, leaves the said roller thus placing t-he ram underthe control of the weighted lever I which through the rods K, K7 raisesthe ram preparatory to the projecting portion of the cam F again actingon the roller f. These rods K K being situated one near t-he inside ofone standard A and the other near the inside of the standard A and at adistance from the dies they present no obstruction to the freeintroduction of the bent and heated bars into the recess of the lowerdie. 1 As the ram rises the cam G begins to operate on the lever Sthereby raising the block P and causing the rods g g to force the formedshoe from the recess of the lower die. By the time the Vram has reachedthe limit of its upward movement however the rods g, g, are released andfall by the weight of the block P until their upper ends are on a levelwith the bottom of the recess of the lower die.

In order to form the nail holes and recesses for the heads of the nailson the underside of the shoe projections of a suitable form are arrangedon the lower die.

I claim as my invention and desire to se- Y of the form of the insideedge of the shoe, in

combination with the lower die M, with its recess of the form of theouter edge of the shoe, the dies being so constructed and arranged thatwhen the said projection penetrates the said recess a space of thedesired form of the shoe shall be inclosed by the two dies.

2. The weighted lever I its rods K K the latter passing through theguides e e of the frame, and being connected to the ram as specied, andthe whole being arranged and combined with the revolving cam Fsubstantially as and for the purpose herein set forth.

3. The block P with its rods q q passing through the lower die M andinto the recess of the same, in combination with the arm Q lever S andrevolving cam Gr the whole being arranged and operating substantially asdescribed for the purpose specified.

In testimony whereof, I have signed my name to this specication, in thepresence of two subscribing witnesses.

JOHN MGCARTY.

Vitnesses:

ROBERT PORTER, Y HENRY UEBEL.

